PuTTY fatal error: “No supported authentication methods available”

Solution: To fix “PuTTY fatal error: “No supported authentication methods available”:

You need to Edit sshd_config file and set PasswordAuthentication to yes.

How to fix “Putty – no supported authentication”

Step 1: Open sshd_config

sudo vi /etc/ssh/sshd_config

Step 2: set PasswordAuthentication to yes

Step 3: Then restart server

sudo service ssh restart
sudo service sshd restart